Variable speed 3 finger trigger, SDS-Plus tool-free bit changes, 3 modes of operation, rotation only, rotary hammer andhammer only mode, vario-lock positioning rotates and locks chisel into 36 different positions, padded rear handle, 360 degree auxiliary handle with built-in depth gauge, integral clutch, double insulated, UL listed, complies to OSHA. Specs: 120V, impact energy is  2.6 ft./lbs., optimal concrete capacity range: 1/4"-7/8",max. hole diameter in: concrete-1-1/8", concrete-thin wall core bit-3", steel-1/2", wood-1-1/4", no load BPM 0-3,900, no load RPM 0-850 ,  weighs 9.3lbs., 12' cord, 15-1/4" long. Includes: (1) rotary hammer, (1) auxiliary handle, (1) depth gauge, (1) carrying case